Some services need to set up tune=zerolatency
for low-latency streaming

Allows rendering only a subregion of a specific sprite.

Don't nudge sources if preview is locked

Add link to CONTRIBUTE for translations

Adds a reset and close button to the transform dialog.

Closes jp9000/obs-studio#612

The profile setting may have been unintentionally removed in 0157d025.

Closes jp9000/obs-studio#616

Rather than reload when the timestamp is greater than the previous
timestamp, reload whenever the timestamp has changed.

image-source: Reload file when timestamp has changed

The call type for the deleter function used with the GDIObj helper class
is __stdcall.  Without it, it'll fail to build in 32bit properly.

This reverts commit 7224e8d3.

This change was unnecessary due to the fact that indexing is already
performed automatically via the cast operator.

If the font size is too big, it can take up the entire properties view
window.

This commit fixes the issue outlined in the following thread:
https://obsproject.com/forum/threads/50045/

When the image source file was replaced by an outside process, it would
only reload when the file's new timestamp was newer than the file's
previous timestamp.  This fixes that behavior.  Now an image source
will reload any time the file's new timestamp is different than its
previous timestamp.

This clears out remaining NVENC frames to ensure that the encoder has
finished processing before shutting down.

If the user hits the "stop stream" button it'll transition in to
"stopping stream..." and will continue to output until the stream
reaches the timing in which "stop" was pressed.

However, if there is significant congestion, stopping the stream can
take far longer than the user may like.  So there needs to be an option
to forcibly stop the stream in that case; pushing the "stop" button a
second time should allow the user to tell the stream/recording to stop
right away instead of waiting for the precise stop timing.

Allow outputs to force a stop even when already in the process of
stopping.  If for example a stream is heavily congested and taking a
very long time to stop, this allows frontends to give the users the
option to forcibly stop the stream to make it stop as quickly as
possible.

- Checks for previous instances by using the FindProcDLL NSIS plugin

- No longer allows ignoring if there is a sharing violation.

- Added version information section to allow friendly description in
  the UAC elevation prompt.

- Kill lingering instances of cef-bootstrap before installing.

Allows getting a translated string for the current module, returning
false if no string available.

Allows manipulating and modifying the front-end via plugins.

Allows using the functions outside of the file they're in.

This allows using the functions via Qt message queue.  The reason for
this is so a frontend API can queue these functions to call safely from
another thread.

Closes #613 & #614

Add Windows bitness (32/64-bit) to log file